Note: If you do not have iPi Mocap Studio license key, you can order it here or activate 30-days free trial. If your Studio trial has expired, you will not be able to export biomech data as well as animation. But you can still plot biomech data.

To get maximum accuracy, we recommend to do tracking, refine and jitter removal before exporting data

Select Data for Analysis

First you need to select data that you will analyze

Select bones

(1) Check corresponding bones to include them in analysis

Note: On the top of the list you can see "special" bones — Center of mass, Center of mass projection to the ground. The rest of the list are the bones from the internal iPi rig.

(2) You can include finger bones into analysis by expanding hand bone (RHand and / or LHand). However, fingers are not tracked due to insufficient resolution of off-the-shelf cameras, so they just keep attached to hand joint (RHand or LHand), remaining in default position related to hand

(3) You can select all bones by clicking to the checkbox in the header. Fingers will be included only if the hand bone is expanded.

(4) You can change bones listbox height using splitter at the bottom.

Select linear quantities for analysis

Select output units for each quantity

Select linear coordinate system

Select angular quantities for analysis

Select output units for each quantity

Select angular coordinate system

Select Euler angles system

Plot Data

You can plot values of the selected quantities for the selected bones within the Region-of-Interest (except Quaternions and Rotation matrices, as it makes no sense to see them on plots due to their physical meaning).

Select the Region-of-Interest

Press Plot Selected Data button

Plot window will be opened. If it is already opened it's contents will be updated. In the Plot window you see bones in rows and quantities in columns. Plot controls:

Plot controls button shows plot control keys (focus should be set to Plot window).

Mouse wheel — zoom in / out for the horizontal axis

'Page Up' key — zoom in for the horizontal axis

'Page Down' key — zoom out for the horizontal axis

Right mouse button drag over plots — horizontal shift of all plots

Left mouse button drag over table header title — change columns order

'Right arrow' key — shift all plots to the left

'Left arrow' key — shift all plots to the right

Left mouse key click — show plot values for particular frame

'A' key — cancel zoom and shift, restore initial state of all plots

Reload plot data reloads plot's data. Useful when selection of bones, quantities, Region-of-Interest changed or any tracking / refined / filtering applied to motion data. You will get the same effect if you press Plot button.

Scroll to current frame button shifts all plots along horizontal axis, in order to make current frame visible in the plot area. Nothing happens, if current frame is already visible on plots.

Show / hide series button allows to select particular components of the corresponding quantity that will be shown on graph.

Export Motion Data

To export values of the selected quantities for the selected bones within the Region-of-Interest:

Copy to clipboard / paste to Excel: text data will be copied to clipboard. You just need to open empty Excel sheet and paste data to it. Information on parameters such as coordinate systems and units will be in the top rows.

Biomech Export Profile

You can save all interface settings (1) to an XML file, and later load them from the file (2). It is useful if you work with several projects that require to analyze different bones and / or quantities. The following settings are stored: